问题描述
(抱歉坏英文)
我有一个大问题的DataGridView
当它重新油漆的性能。
我使用了一个的DataGridView
来显示从外部应用程序流日志。从流消息进来以高频率(小于1毫秒)。如果我添加新行的DataGridView
立刻当每一个新的消息来了,的DataGridView
没有时间重新-paint本身的下一条消息到来之前。
一个可能的解决方案是使用一个队列来收集与队列中的消息的消息,并重新油漆的DataGridView
每100毫秒。这是好的,但的DataGridView
闪烁时,它自动滚动到最后一行。 (平滑滚动被禁用)
您可以帮我提高的DataGridView
性能?
我最近与的DataGridView一些缓慢的问题
和解决方案是下面的code
公共静态无效DoubleBuffered(此的DataGridView DGV,布尔设置)
{
键入dgvType = dgv.GetType();
的PropertyInfo PI = dgvType.GetProperty(DoubleBuffered
BindingFlags.Instance | BindingFlags.NonPublic可);
pi.SetValue(DGV,设置,NULL);
}
原来对的DataGridView
对象双缓冲。只需拨打 DoubleBuffered()
您DGV。希望它能帮助。
编辑:我可能已经走了这么得到了这一关,但我不能搜索原来现在所以这只是强调,code是不是我的
(sorry for bad English)
I have a big problem with performance of DataGridView
when it re-paints.
I'm using a DataGridView
to show logs from an external application stream. Messages from the stream come in with a high frequency (less than 1 ms). If I add new row to the DataGridView
immediately when each new message comes, the DataGridView
doesn't have time to re-paint itself before the next message comes.
A possible solution is to use a queue to collect messages and re-paint DataGridView
every 100 ms with messages from queue. This is good but the DataGridView
blinks when it auto-scrolls to the last row. (Smooth scroll is disabled)
Can you help me to improve DataGridView
performance?
I recently had some slowness issues with DataGridView
and the solution was the following code
public static void DoubleBuffered(this DataGridView dgv, bool setting)
{
Type dgvType = dgv.GetType();
PropertyInfo pi = dgvType.GetProperty("DoubleBuffered",
BindingFlags.Instance | BindingFlags.NonPublic);
pi.SetValue(dgv, setting, null);
}
It turns double buffering on for DataGridView
objects. Just call DoubleBuffered()
on your DGV. Hope it helps.
Edit: I might've gotten this off SO, but I can't search for the original right now so this is just to emphasize that the code isn't mine.
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